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Sharp r250a microwave

How do I defrost things? I press defrost button but then can't press anything else? thanks

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  • Microwave Ovens Master
  • 9,047 Answers

Try hitting "defrost" once, then hitting "defrost" again to see if it brings up any options. Otherwise Google the words Sharp X customer support (where X is your country name) and only click a link which is an official Sharp site, not some click aggregator (*cough!*) or malware site.

Posted on Oct 17, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp R-510AK Microwave Oven Fuse Blows

If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.

Here are some links you or a friend can use for test help, but read their safety warnings first:

http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/diode.html
http://www.microtechfactoryservice.com/mag_test.html
http://www.microtechfactoryservice.com/xformer.html


You can probably find an exploded view by entering your FULL model number here: http://www3.sears.com (the 3 is correct)
You can order Sharp parts from Sears or from Tritronics at http://www.wehaveparts.com
We\'re happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jan 13, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: GE Microwave TimeCook defaults to Defrost Auto

It sounds like your keypad (membrane switch) is failing.

If you or someone you know decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting. You can use it to test for a bad keypad.

If you'd rather have us fix it for you, we do that for $39.95 plus parts and you can visit us via our link her eon Fixya http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Mar 18, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Sharp Carousel Microwave R-320FQ Serial # 26805 Mfg. Dec. 2002

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

Let us know if the hard reset does not fix it.

It may have an intermittently shorting keypad or another problem on the control panel, which we repair for customers nationwide with our guaranteed $39.95 service.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Aug 09, 2008

  • 36 Answers

SOURCE: Sharp 1870 just quit cooking and no turntable

The fact that the microwave and convection both do not heat indicated that the oven is in demo mode, check the user manual, otherwise it will possibly be a relay not triggering, may need a pcb replacement, check Demo mode 1st....Phil

Posted on Jan 08, 2009

  • 3741 Answers

SOURCE: sharp carousel microwave model # 508ak has power

9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section. Q - My microwave is running and sounds like it is working but will not heat up anything.
A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....

Q - The microwave display counts down and the inside light is on, but nothing is heating and the fan is not running.
A - This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common.
thanks.

Posted on Jul 11, 2009

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Sharp carousel microwave model # 508ak has power but does not heat food when you press the start button. thanks in advance!


9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section. Q - My microwave is running and sounds like it is working but will not heat up anything.
A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....

Q - The microwave display counts down and the inside light is on, but nothing is heating and the fan is not running.
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The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

Let us know if the hard reset does not fix it.

It may have an intermittently shorting keypad or another problem on the control panel, which we repair for customers nationwide with our guaranteed $39.95 service.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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